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  <title>Encode a UTF-8 string to modified UTF-7</title>
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  <div id="layout-content"><div id="function.imap-utf8-to-mutf7" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">imap_utf8_to_mutf7</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.3.0, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">imap_utf8_to_mutf7</span> &mdash; <span class="dc-title">Encode a UTF-8 string to modified UTF-7</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.imap-utf8-to-mutf7-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>imap_utf8_to_mutf7</strong></span>(<span class="methodparam"><span class="type">string</span> <code class="parameter">$string</code></span>): <span class="type"><span class="type">string</span>|<span class="type"><span class="type false">false</span></span></span></div>

  <p class="para rdfs-comment">
   Encode a UTF-8 string to modified UTF-7 (as specified in RFC 2060, section 5.1.3).
  </p>
  <blockquote class="note"><p><strong class="note">注意</strong>: 
   <p class="para">
    This function is only available, if libcclient exports utf8_to_mutf7().
   </p>
  </p></blockquote>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.imap-utf8-to-mutf7-parameters">
  <h3 class="title">参数</h3>
  <dl>
   
    <dt>
<code class="parameter">string</code></dt>

    <dd>

     <p class="para">
      A UTF-8 encoded string.
     </p>
    </dd>

   
  </dl>

 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.imap-utf8-to-mutf7-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns <code class="parameter">string</code> converted to modified UTF-7,
    或者在失败时返回 <strong><code>false</code></strong>.
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.imap-utf8-to-mutf7-seealso">
  <h3 class="title">参见</h3>
  <ul class="simplelist">
   <li class="member"><span class="function"><a href="function.imap-mutf7-to-utf8.html" class="function" rel="rdfs-seeAlso">imap_mutf7_to_utf8()</a> - Decode a modified UTF-7 string to UTF-8</span></li>
  </ul>
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